MAX25203EVKIT# Analog Devices

Evaluates: MAX25203 MAX25203 Evaluation Kit General Description Features The MAX25203 evaluation kit (EV kit) is a fully assembled Meets Stringent OEM Module Power Consumption and tested board for evaluating the MAX25203 dual- and Performance Specifications phase automotive synchronous boost controller. The 1.5% Output-Voltage Accuracy at FB MAX25203 enables infotainment systems to stay in regu- Output Voltage Adjustable Between 12V and 65V lation during cold crank or start-stop operation all the way 5A Shutdown Supply Current down to battery input of 1.8V. It can also be used to gener- High Efficiency and Current Sharing ate backlight voltage and class D audio amplifier voltages. Preset Gate Drive Voltage for External MOSFETs This device can start with an input voltage supply from from 5.5V to 10V Allows User to Optimize External 4.5V to 42V and can operate down to 1.8V after start-up MOSFETs and has a low 5A shutdown supply current. Current Sharing Accuracy is 5% Between 2 Phases to Improve System Efficiency The MAX25203 features a power-OK monitor, overvolt- age and undervoltage lockout. Protection features include EMI Reduction Features Reduce Interference with cycle-by-cycle current limit and thermal shutdown. It is Sensitive Radio Bands without Sacrificing Wide Input specified for operation over the -40C to +125C automo- Voltage Range tive temperature range. Spread-Spectrum Option Frequency-Synchronization Input Resistor-Programmable Frequency Between 200kHz and 2.2MHz MA25203 EV Kit Files Integration and Thermally Enhanced Packages Save FILE DESCRIPTION Board Space and Cost SetupMAX25203EVkitV1.exe Windows GUI Installer Current-Mode Controllers with Forced-Continuous and Skip Modes Side Wettable 32-Pin TQFN-EP Package Protection Features and I2C diagnostics for Improved Ordering Information System Reliability Supply Undervoltage Lockout PART TYPE Die Temperature Monitoring via I2C MAX25203EVKIT EV Kit Short Circuit Protection with True Shutdown Denotes RoHS compliance. Individual Phase Current Monitoring via I2C 319-100758 Rev 0 5/21MAX25203 Evaluation Kit Evaluates: MAX25203 Software Setup and Procedure Quick Start 1) Download the latest version of the EV kit software for Required Equipment Windows 7/Windows 10 from www.maximinte- MAX25203 EV kit grated.com/evkitsoftware. 12V DC power supply or battery 2) Install the software on your PC by running the Digital multimeter (DMM) installer. Electronic load 3) Connect the USB cable from your PC to the EV kit (USB connector on module installed at U2). Procedure (Stand-Alone) 4) Verify the jumpers are set to the default positions as The EV kit is fully assembled and tested. Use the follow- shown in Table 1. To allow the software to control ing steps to verify board operation: the output voltage, set J1 to position 2-3 (for fixed Caution: Do not turn on the power supply until all output voltage set to 1-2). connections are completed. 5) Preset the power supply voltage between 5V and 1) Verify the jumpers are set to the default positions as 36V, and make sure the current limit is adequate for shown in Table 1. the desired load. 2) Preset the power supply voltage between 5V and 6) Disable or turn off the power supply. Do not turn on 36V, and make sure the current limit is adequate for the supply until all connections are completed. the desired load. 7) Connect the power supply to the BATT screw termi- 3) Disable or turn off the power supply. Do not turn on nals on the EV kit. the supply until all connections are completed. 8) Connect the load to the OUT screw terminals on the 4) Connect the power supply to the BATT screw termi- EV kit. nals on the EV kit. 9) Turn on or enable the power supply. 5) Connect the load to the OUT screw terminals on the 10) Launch the EV kit software application. EV kit. 11) The EV kit software can be used to monitor the sta- 6) Turn on or enable the power supply. tus and set various settings of the MAX25203. Refer 7) With the DMM, verify the voltage from the OUT to to the MAX25203 data sheet for details. GND terminal of the EV kit is 40V. Table 1. Jumper Settings JUMPER DESCRIPTION DEFAULT Feedback Select. Connect 1-2 for external feedback divider (40V output). Connect 2-3 to use J1 1-2 I2C or PWM input for setting the output voltage. J2 SCL pullup resistor. 1-2 J3 SDA pullup resistor. 1-2 J10 Enable. Connect 1-2 to enable controller, or 2-3 to disable. 1-2 J13 PGOOD LED and pullup resistor. Connect 1-2 to use LED and pullup. 1-2 J22 Test header. Do not connect. OPEN PWM input. Leave open when using the PWM input to control the output voltage. Connect 2-3 to J26 2-3 set PWM low (recommended when not using the PWM input). Connect 1-2 to set PWM high. J27 Leave open OPEN FSYNC clock select. Leave open when synchronizing the clock to an external source connected J28 to FSYNC. Connect 1-2 for internal clock with forced PWM switching. Connect 2-3 for skip mode 1-2 operation. Windows 7 and Windows 10 are registered trademarks and registered service marks of Microsoft Corporation. Maxim Integrated 2 www.maximintegrated.com